7. Use the buddy system. “Working out with someone else is not only more fun but also more motivating; you’re less likely to skip the workout if you know you have to meet someone,” says Cindy Whitmarsh, KUSI-TV fitness expert and creator of Ultrafit Nutrition Systems. “Working out with someone else also holds you accountable. “I’ve found that accountability is one of the most important things to keep people on track,” adds Whitmarsh. “Even if it’s a friend who will do your measurements weekly—it really works!”